1461475740 has 48 divisors (see below), whose sum is σ = 4099042080. Its totient is φ = 389068800.

The previous prime is 1461475733. The next prime is 1461475783. The reversal of 1461475740 is 475741641.

It is a super-2 number, since 2×1461475740² = 4271822677217095200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

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, 15796 + ... + 56324.

It is an arithmetic number, because the mean of its divisors is an integer number (85396710).

Almost surely, 2^1461475740 is an apocalyptic number.

1461475740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1461475740 is an abundant number, since it is smaller than the sum of its proper divisors (2637566340).

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

1461475740 is a wasteful number, since it uses less digits than its factorization.

1461475740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41142 (or 41140 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 1461475740 is about 38229.2524122562. The cubic root of 1461475740 is about 1134.8292911508.

The spelling of 1461475740 in words is "one billion, four hundred sixty-one million, four hundred seventy-five thousand, seven hundred forty".