648958402 has 16 divisors (see below), whose sum is σ = 1005523200. Its totient is φ = 313798320.

The previous prime is 648958399. The next prime is 648958403. The reversal of 648958402 is 204859846.

It is a super-2 number, since 2×648958402² = 842294015052787208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (648958403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125749 + ... + 130807.

It is an arithmetic number, because the mean of its divisors is an integer number (62845200).

Almost surely, 2^648958402 is an apocalyptic number.

648958402 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

648958402 is a deficient number, since it is larger than the sum of its proper divisors (356564798).

648958402 is a wasteful number, since it uses less digits than its factorization.

648958402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7161.

The product of its (nonzero) digits is 552960, while the sum is 46.

The square root of 648958402 is about 25474.6619604657. The cubic root of 648958402 is about 865.7761539046.

The spelling of 648958402 in words is "six hundred forty-eight million, nine hundred fifty-eight thousand, four hundred two".