1957422240 has 96 divisors (see below), whose sum is σ = 6850992960. Its totient is φ = 521978112.

The previous prime is 1957422223. The next prime is 1957422281. The reversal of 1957422240 is 422247591.

1957422240 is a `hidden beast` number, since 195 + 7 + 422 + 2 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

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 = 1957422195 and 1957422204.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222234 + ... + 230873.

It is an arithmetic number, because the mean of its divisors is an integer number (71364510).

Almost surely, 2^1957422240 is an apocalyptic number.

1957422240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1957422240 is an abundant number, since it is smaller than the sum of its proper divisors (4893570720).

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

1957422240 is a wasteful number, since it uses less digits than its factorization.

1957422240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453131 (or 453117 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 1957422240 is about 44242.7648322299. The cubic root of 1957422240 is about 1250.9160730175.

It can be divided in two parts, 19574 and 22240, that added together give a palindrome (41814).

The spelling of 1957422240 in words is "one billion, nine hundred fifty-seven million, four hundred twenty-two thousand, two hundred forty".