407542863 has 64 divisors (see below), whose sum is σ = 691891200. Its totient is φ = 207664128.

The previous prime is 407542823. The next prime is 407542871. The reversal of 407542863 is 368245704.

It is a happy number.

It is not a de Polignac number, because 407542863 - 2²⁰ = 406494287 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (407542813) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1748995 + ... + 1749227.

It is an arithmetic number, because the mean of its divisors is an integer number (10810800).

Almost surely, 2^407542863 is an apocalyptic number.

407542863 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

407542863 is a deficient number, since it is larger than the sum of its proper divisors (284348337).

407542863 is a wasteful number, since it uses less digits than its factorization.

407542863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448.

The product of its (nonzero) digits is 161280, while the sum is 39.

The square root of 407542863 is about 20187.6908783546. The cubic root of 407542863 is about 741.4088469911.

The spelling of 407542863 in words is "four hundred seven million, five hundred forty-two thousand, eight hundred sixty-three".