4020000402 has 32 divisors (see below), whose sum is σ = 8901828864. Its totient is φ = 1199998800.

The previous prime is 4020000401. The next prime is 4020000409. The reversal of 4020000402 is 2040000204.

It is a super-3 number, since 3×4020000402³ (a number of 30 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (4020000401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 450124 + ... + 458967.

It is an arithmetic number, because the mean of its divisors is an integer number (278182152).

Almost surely, 2^4020000402 is an apocalyptic number.

4020000402 is an abundant number, since it is smaller than the sum of its proper divisors (4881828462).

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

4020000402 is a wasteful number, since it uses less digits than its factorization.

4020000402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909174.

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 4020000402 is about 63403.4731067629. The cubic root of 4020000402 is about 1590.0423761500.

Adding to 4020000402 its reverse (2040000204), we get a palindrome (6060000606).

It can be divided in two parts, 4020000 and 402, that multiplied together give a square (1616040000 = 40200²).

The spelling of 4020000402 in words is "four billion, twenty million, four hundred two", and thus it is an aban number.