140906392 has 16 divisors (see below), whose sum is σ = 288217800. Its totient is φ = 64048320.

The previous prime is 140906357. The next prime is 140906407. The reversal of 140906392 is 293609041.

It is a super-2 number, since 2×140906392² = 39709222612915328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 800517 + ... + 800692.

Almost surely, 2^140906392 is an apocalyptic number.

It is an amenable number.

140906392 is an abundant number, since it is smaller than the sum of its proper divisors (147311408).

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

140906392 is a wasteful number, since it uses less digits than its factorization.

140906392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1601226 (or 1601222 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 140906392 is about 11870.3998247742. The cubic root of 140906392 is about 520.3675803383.

It can be divided in two parts, 14090639 and 2, that multiplied together give a triangular number (28181278 = T₇₅₀₇).

The spelling of 140906392 in words is "one hundred forty million, nine hundred six thousand, three hundred ninety-two".