1146639480 has 64 divisors (see below), whose sum is σ = 3931338240. Its totient is φ = 262088832.

The previous prime is 1146639469. The next prime is 1146639491. The reversal of 1146639480 is 849366411.

It is an interprime number because it is at equal distance from previous prime (1146639469) and next prime (1146639491).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 681684 + ... + 683363.

It is an arithmetic number, because the mean of its divisors is an integer number (61427160).

Almost surely, 2^1146639480 is an apocalyptic number.

1146639480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1146639480 is an abundant number, since it is smaller than the sum of its proper divisors (2784698760).

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

1146639480 is a wasteful number, since it uses less digits than its factorization.

1146639480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1365068 (or 1365064 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 1146639480 is about 33862.0655010884. The cubic root of 1146639480 is about 1046.6680410727.

The spelling of 1146639480 in words is "one billion, one hundred forty-six million, six hundred thirty-nine thousand, four hundred eighty".