34002021402 has 48 divisors (see below), whose sum is σ = 80893717632. Its totient is φ = 10667298240.

The previous prime is 34002021367. The next prime is 34002021409. The reversal of 34002021402 is 20412020043.

It is a super-2 number, since 2×34002021402² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (34002021409) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2049474 + ... + 2065997.

It is an arithmetic number, because the mean of its divisors is an integer number (1685285784).

Almost surely, 2^34002021402 is an apocalyptic number.

34002021402 is an abundant number, since it is smaller than the sum of its proper divisors (46891696230).

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

34002021402 is a wasteful number, since it uses less digits than its factorization.

34002021402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4115505 (or 4115493 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 34002021402 its reverse (20412020043), we get a palindrome (54414041445).

The spelling of 34002021402 in words is "thirty-four billion, two million, twenty-one thousand, four hundred two".