40072020153440 has 48 divisors (see below), whose sum is σ = 103276524672720. Its totient is φ = 14571643691520.

The previous prime is 40072020153437. The next prime is 40072020153443. The reversal of 40072020153440 is 4435102027004.

It is an interprime number because it is at equal distance from previous prime (40072020153437) and next prime (40072020153443).

It is a super-2 number, since 2×40072020153440² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 40072020153397 and 40072020153406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40072020153443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11384094875 + ... + 11384098394.

It is an arithmetic number, because the mean of its divisors is an integer number (2151594264015).

Almost surely, 2^{40072020153440} is an apocalyptic number.

40072020153440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40072020153440 is an abundant number, since it is smaller than the sum of its proper divisors (63204504519280).

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

40072020153440 is a wasteful number, since it uses less digits than its factorization.

40072020153440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22768193295 (or 22768193287 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 32.

The spelling of 40072020153440 in words is "forty trillion, seventy-two billion, twenty million, one hundred fifty-three thousand, four hundred forty".