7420002140 has 24 divisors (see below), whose sum is σ = 15597429120. Its totient is φ = 2965062848.

The previous prime is 7420002133. The next prime is 7420002169. The reversal of 7420002140 is 412000247.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162860 + ... + 203379.

It is an arithmetic number, because the mean of its divisors is an integer number (649892880).

Almost surely, 2^7420002140 is an apocalyptic number.

It is an amenable number.

7420002140 is an abundant number, since it is smaller than the sum of its proper divisors (8177426980).

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

7420002140 is a wasteful number, since it uses less digits than its factorization.

7420002140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367261 (or 367259 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 7420002140 is about 86139.4342911538. The cubic root of 7420002140 is about 1950.4493498755.

Adding to 7420002140 its reverse (412000247), we get a palindrome (7832002387).

The spelling of 7420002140 in words is "seven billion, four hundred twenty million, two thousand, one hundred forty".