20962402 has 4 divisors (see below), whose sum is σ = 31443606. Its totient is φ = 10481200.

The previous prime is 20962399. The next prime is 20962427. The reversal of 20962402 is 20426902.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20426902 = 2 ⋅10213451.

It can be written as a sum of positive squares in only one way, i.e., 12383361 + 8579041 = 3519^2 + 2929^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5240599 + ... + 5240602.

Almost surely, 2^20962402 is an apocalyptic number.

20962402 is a deficient number, since it is larger than the sum of its proper divisors (10481204).

20962402 is a wasteful number, since it uses less digits than its factorization.

20962402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10481203.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 20962402 is about 4578.4715790316. The cubic root of 20962402 is about 275.7276684345.

The spelling of 20962402 in words is "twenty million, nine hundred sixty-two thousand, four hundred two".