1406025240 has 64 divisors (see below), whose sum is σ = 4222056960. Its totient is φ = 374586240.

The previous prime is 1406025233. The next prime is 1406025263. The reversal of 1406025240 is 425206041.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1406025240.

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, 137505 + ... + 147375.

It is an arithmetic number, because the mean of its divisors is an integer number (65969640).

Almost surely, 2^1406025240 is an apocalyptic number.

1406025240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1406025240 is an abundant number, since it is smaller than the sum of its proper divisors (2816031720).

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

1406025240 is a wasteful number, since it uses less digits than its factorization.

1406025240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11072 (or 11068 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 1406025240 is about 37497.0030802463. The cubic root of 1406025240 is about 1120.2914951313.

The spelling of 1406025240 in words is "one billion, four hundred six million, twenty-five thousand, two hundred forty".