1626052240 has 20 divisors (see below), whose sum is σ = 3780571644. Its totient is φ = 650420864.

The previous prime is 1626052231. The next prime is 1626052249. The reversal of 1626052240 is 422506261.

It is an interprime number because it is at equal distance from previous prime (1626052231) and next prime (1626052249).

It can be written as a sum of positive squares in 2 ways, for example, as 392356864 + 1233695376 = 19808^2 + 35124^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 1626052199 and 1626052208.

It is not an unprimeable number, because it can be changed into a prime (1626052249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10162747 + ... + 10162906.

Almost surely, 2^1626052240 is an apocalyptic number.

1626052240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1626052240 is an abundant number, since it is smaller than the sum of its proper divisors (2154519404).

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

1626052240 is a wasteful number, since it uses less digits than its factorization.

1626052240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20325666 (or 20325660 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 1626052240 is about 40324.3380602831. The cubic root of 1626052240 is about 1175.9210499700.

The spelling of 1626052240 in words is "one billion, six hundred twenty-six million, fifty-two thousand, two hundred forty".