1626343140 has 96 divisors (see below), whose sum is σ = 4693618944. Its totient is φ = 420456960.

The previous prime is 1626343127. The next prime is 1626343151. The reversal of 1626343140 is 413436261.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1626343098 and 1626343107.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 702585 + ... + 704895.

It is an arithmetic number, because the mean of its divisors is an integer number (48891864).

Almost surely, 2^1626343140 is an apocalyptic number.

1626343140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1626343140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2346809472).

1626343140 is an abundant number, since it is smaller than the sum of its proper divisors (3067275804).

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

1626343140 is a wasteful number, since it uses less digits than its factorization.

1626343140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2677 (or 2675 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 1626343140 is about 40327.9449017676. The cubic root of 1626343140 is about 1175.9911697009.

The spelling of 1626343140 in words is "one billion, six hundred twenty-six million, three hundred forty-three thousand, one hundred forty".