2044657402 has 4 divisors (see below), whose sum is σ = 3066986106. Its totient is φ = 1022328700.

The previous prime is 2044657399. The next prime is 2044657411. The reversal of 2044657402 is 2047564402.

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., 1451686201 + 592971201 = 38101^2 + 24351^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511164349 + ... + 511164352.

Almost surely, 2^2044657402 is an apocalyptic number.

2044657402 is a deficient number, since it is larger than the sum of its proper divisors (1022328704).

2044657402 is a wasteful number, since it uses less digits than its factorization.

2044657402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022328703.

The product of its (nonzero) digits is 53760, while the sum is 34.

The square root of 2044657402 is about 45217.8880754066. Note that the first 3 decimals coincide. The cubic root of 2044657402 is about 1269.2295742678.

The spelling of 2044657402 in words is "two billion, forty-four million, six hundred fifty-seven thousand, four hundred two".