1357457750 has 32 divisors (see below), whose sum is σ = 2772181152. Its totient is φ = 493620000.

The previous prime is 1357457749. The next prime is 1357457771. The reversal of 1357457750 is 577547531.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 244061 + ... + 249560.

It is an arithmetic number, because the mean of its divisors is an integer number (86630661).

Almost surely, 2^1357457750 is an apocalyptic number.

1357457750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1357457750 is an abundant number, since it is smaller than the sum of its proper divisors (1414723402).

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

1357457750 is a wasteful number, since it uses less digits than its factorization.

1357457750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493649 (or 493639 counting only the distinct ones).

The product of its (nonzero) digits is 514500, while the sum is 44.

The square root of 1357457750 is about 36843.6934902026. The cubic root of 1357457750 is about 1107.2408679894.

The spelling of 1357457750 in words is "one billion, three hundred fifty-seven million, four hundred fifty-seven thousand, seven hundred fifty".