43722402051240 has 128 divisors (see below), whose sum is σ = 158990552956800. Its totient is φ = 10599370191360.

The previous prime is 43722402051227. The next prime is 43722402051241. The reversal of 43722402051240 is 4215020422734.

43722402051240 is a `hidden beast` number, since 4 + 3 + 7 + 2 + 2 + 402 + 0 + 5 + 1 + 240 = 666.

It is a super-2 number, since 2×43722402051240² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 43722402051195 and 43722402051204.

It is not an unprimeable number, because it can be changed into a prime (43722402051241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1840156557 + ... + 1840180316.

It is an arithmetic number, because the mean of its divisors is an integer number (1242113694975).

Almost surely, 2^{43722402051240} is an apocalyptic number.

43722402051240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43722402051240 is an abundant number, since it is smaller than the sum of its proper divisors (115268150905560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43722402051240 is a wasteful number, since it uses less digits than its factorization.

43722402051240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3680336904 (or 3680336894 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 36.

Adding to 43722402051240 its reverse (4215020422734), we get a palindrome (47937422473974).

The spelling of 43722402051240 in words is "forty-three trillion, seven hundred twenty-two billion, four hundred two million, fifty-one thousand, two hundred forty".