1390654272 has 112 divisors (see below), whose sum is σ = 4230087552. Its totient is φ = 394967040.

The previous prime is 1390654259. The next prime is 1390654297. The reversal of 1390654272 is 2724560931.

It is a tau number, because it is divible by the number of its divisors (112).

It is a self number, because there is not a number n which added to its sum of digits gives 1390654272.

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, 229522 + ... + 235502.

Almost surely, 2^1390654272 is an apocalyptic number.

1390654272 is a gapful number since it is divisible by the number (12) 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 1390654272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2115043776).

1390654272 is an abundant number, since it is smaller than the sum of its proper divisors (2839433280).

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

1390654272 is a wasteful number, since it uses less digits than its factorization.

1390654272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6176 (or 6166 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 1390654272 is about 37291.4772032431. The cubic root of 1390654272 is about 1116.1941055726.

The spelling of 1390654272 in words is "one billion, three hundred ninety million, six hundred fifty-four thousand, two hundred seventy-two".