63455340 has 48 divisors (see below), whose sum is σ = 191344608. Its totient is φ = 15619584.

The previous prime is 63455317. The next prime is 63455377. The reversal of 63455340 is 4355436.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 63455298 and 63455307.

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, 39897 + ... + 41456.

It is an arithmetic number, because the mean of its divisors is an integer number (3986346).

Almost surely, 2^63455340 is an apocalyptic number.

63455340 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

63455340 is an abundant number, since it is smaller than the sum of its proper divisors (127889268).

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

63455340 is a wasteful number, since it uses less digits than its factorization.

63455340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81378 (or 81376 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

The square root of 63455340 is about 7965.8860147507. The cubic root of 63455340 is about 398.8620574534.

The spelling of 63455340 in words is "sixty-three million, four hundred fifty-five thousand, three hundred forty".