420023696 has 10 divisors (see below), whose sum is σ = 813795942. Its totient is φ = 210011840.

The previous prime is 420023693. The next prime is 420023719. The reversal of 420023696 is 696320024.

It can be written as a sum of positive squares in only one way, i.e., 277555600 + 142468096 = 16660^2 + 11936^2 .

It is not an unprimeable number, because it can be changed into a prime (420023693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13125725 + ... + 13125756.

Almost surely, 2^420023696 is an apocalyptic number.

It is an amenable number.

420023696 is a deficient number, since it is larger than the sum of its proper divisors (393772246).

420023696 is a wasteful number, since it uses less digits than its factorization.

420023696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26251489 (or 26251483 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 420023696 is about 20494.4796469684. The cubic root of 420023696 is about 748.9013222919.

The spelling of 420023696 in words is "four hundred twenty million, twenty-three thousand, six hundred ninety-six".