1649142402 has 32 divisors (see below), whose sum is σ = 3407000064. Its totient is φ = 531619200.

The previous prime is 1649142377. The next prime is 1649142403. The reversal of 1649142402 is 2042419461.

It is not an unprimeable number, because it can be changed into a prime (1649142403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 467148 + ... + 470664.

It is an arithmetic number, because the mean of its divisors is an integer number (106468752).

Almost surely, 2^1649142402 is an apocalyptic number.

1649142402 is an abundant number, since it is smaller than the sum of its proper divisors (1757857662).

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

1649142402 is a wasteful number, since it uses less digits than its factorization.

1649142402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6074.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 1649142402 is about 40609.6343494989. The cubic root of 1649142402 is about 1181.4609888902.

The spelling of 1649142402 in words is "one billion, six hundred forty-nine million, one hundred forty-two thousand, four hundred two".