1402140 has 24 divisors (see below), whose sum is σ = 3926160. Its totient is φ = 373888.

The previous prime is 1402129. The next prime is 1402147. The reversal of 1402140 is 412041.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1402147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11625 + ... + 11744.

It is an arithmetic number, because the mean of its divisors is an integer number (163590).

2^1402140 is an apocalyptic number.

1402140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1402140 is an abundant number, since it is smaller than the sum of its proper divisors (2524020).

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

1402140 is a wasteful number, since it uses less digits than its factorization.

1402140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23381 (or 23379 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 1402140 is about 1184.1199263588. The cubic root of 1402140 is about 111.9258650551.

Adding to 1402140 its reverse (412041), we get a palindrome (1814181).

Subtracting from 1402140 its reverse (412041), we obtain a palindrome (990099).

The spelling of 1402140 in words is "one million, four hundred two thousand, one hundred forty".