1402040 has 16 divisors (see below), whose sum is σ = 3154680. Its totient is φ = 560800.

The previous prime is 1402031. The next prime is 1402061. The reversal of 1402040 is 402041.

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, 17486 + ... + 17565.

2^1402040 is an apocalyptic number.

1402040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1402040 is an abundant number, since it is smaller than the sum of its proper divisors (1752640).

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

1402040 is a wasteful number, since it uses less digits than its factorization.

1402040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35062 (or 35058 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 1402040 is about 1184.0777001532. The cubic root of 1402040 is about 111.9232041576.

Adding to 1402040 its reverse (402041), we get a palindrome (1804081).

Subtracting from 1402040 its reverse (402041), we obtain a palindrome (999999).

The spelling of 1402040 in words is "one million, four hundred two thousand, forty".