1651895442 has 12 divisors (see below), whose sum is σ = 3579106830. Its totient is φ = 550631808.

The previous prime is 1651895431. The next prime is 1651895461. The reversal of 1651895442 is 2445981561.

1651895442 is a `hidden beast` number, since 1 + 6 + 518 + 95 + 4 + 42 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1128355281 + 523540161 = 33591^2 + 22881^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45885967 + ... + 45886002.

Almost surely, 2^1651895442 is an apocalyptic number.

1651895442 is an abundant number, since it is smaller than the sum of its proper divisors (1927211388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1651895442 is a wasteful number, since it uses less digits than its factorization.

1651895442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91771977 (or 91771974 counting only the distinct ones).

The product of its digits is 345600, while the sum is 45.

The square root of 1651895442 is about 40643.5166047428. The cubic root of 1651895442 is about 1182.1180578997.

The spelling of 1651895442 in words is "one billion, six hundred fifty-one million, eight hundred ninety-five thousand, four hundred forty-two".