1400022020 has 48 divisors (see below), whose sum is σ = 2994558336. Its totient is φ = 549696000.

The previous prime is 1400021939. The next prime is 1400022023. The reversal of 1400022020 is 202200041.

It is a junction number, because it is equal to n+sod(n) for n = 1400021992 and 1400022010.

It is not an unprimeable number, because it can be changed into a prime (1400022023) 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, 340175 + ... + 344265.

It is an arithmetic number, because the mean of its divisors is an integer number (62386632).

Almost surely, 2^1400022020 is an apocalyptic number.

1400022020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1400022020 is an abundant number, since it is smaller than the sum of its proper divisors (1594536316).

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

1400022020 is a wasteful number, since it uses less digits than its factorization.

1400022020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4412 (or 4410 counting only the distinct ones).

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

The square root of 1400022020 is about 37416.8681212097. The cubic root of 1400022020 is about 1118.6948071770.

Adding to 1400022020 its reverse (202200041), we get a palindrome (1602222061).

The spelling of 1400022020 in words is "one billion, four hundred million, twenty-two thousand, twenty".