64495402 has 4 divisors (see below), whose sum is σ = 96743106. Its totient is φ = 32247700.

The previous prime is 64495373. The next prime is 64495423. The reversal of 64495402 is 20459446.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 53743561 + 10751841 = 7331^2 + 3279^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16123849 + ... + 16123852.

Almost surely, 2^64495402 is an apocalyptic number.

64495402 is a deficient number, since it is larger than the sum of its proper divisors (32247704).

64495402 is a wasteful number, since it uses less digits than its factorization.

64495402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32247703.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 64495402 is about 8030.9029380263. The cubic root of 64495402 is about 401.0294358816.

The spelling of 64495402 in words is "sixty-four million, four hundred ninety-five thousand, four hundred two".