464644446 has 32 divisors (see below), whose sum is σ = 1090752000. Its totient is φ = 129167136.

The previous prime is 464644421. The next prime is 464644457. The reversal of 464644446 is 644446464.

It is a super-2 number, since 2×464644446² = 431788922397293832, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 464644398 and 464644407.

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, 147946 + ... + 151053.

It is an arithmetic number, because the mean of its divisors is an integer number (34086000).

Almost surely, 2^464644446 is an apocalyptic number.

464644446 is an abundant number, since it is smaller than the sum of its proper divisors (626107554).

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

464644446 is a wasteful number, since it uses less digits than its factorization.

464644446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299048.

The product of its digits is 884736, while the sum is 42.

The square root of 464644446 is about 21555.6128653305. The cubic root of 464644446 is about 774.5335776889.

The spelling of 464644446 in words is "four hundred sixty-four million, six hundred forty-four thousand, four hundred forty-six".