457778040 has 64 divisors (see below), whose sum is σ = 1454124960. Its totient is φ = 114892800.

The previous prime is 457778003. The next prime is 457778047. The reversal of 457778040 is 40877754.

It is a junction number, because it is equal to n+sod(n) for n = 457777983 and 457778001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (457778047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110161 + ... + 114240.

Almost surely, 2^457778040 is an apocalyptic number.

457778040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

457778040 is an abundant number, since it is smaller than the sum of its proper divisors (996346920).

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

457778040 is a wasteful number, since it uses less digits than its factorization.

457778040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224432 (or 224428 counting only the distinct ones).

The product of its (nonzero) digits is 219520, while the sum is 42.

The square root of 457778040 is about 21395.7481757474. The cubic root of 457778040 is about 770.6993365394.

The spelling of 457778040 in words is "four hundred fifty-seven million, seven hundred seventy-eight thousand, forty".