1401023020 has 12 divisors (see below), whose sum is σ = 2942148384. Its totient is φ = 560409200.

The previous prime is 1401022999. The next prime is 1401023053. The reversal of 1401023020 is 203201041.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35025556 + ... + 35025595.

It is an arithmetic number, because the mean of its divisors is an integer number (245179032).

Almost surely, 2^1401023020 is an apocalyptic number.

1401023020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1401023020 is an abundant number, since it is smaller than the sum of its proper divisors (1541125364).

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

1401023020 is a wasteful number, since it uses less digits than its factorization.

1401023020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70051160 (or 70051158 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1401023020 is about 37430.2420510474. The cubic root of 1401023020 is about 1118.9613617281.

Adding to 1401023020 its reverse (203201041), we get a palindrome (1604224061).

The spelling of 1401023020 in words is "one billion, four hundred one million, twenty-three thousand, twenty".