1401018740 has 24 divisors (see below), whose sum is σ = 3209607072. Its totient is φ = 509461280.

The previous prime is 1401018737. The next prime is 1401018767. The reversal of 1401018740 is 478101041.

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, 3183914 + ... + 3184353.

It is an arithmetic number, because the mean of its divisors is an integer number (133733628).

Almost surely, 2^1401018740 is an apocalyptic number.

1401018740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1401018740 is an abundant number, since it is smaller than the sum of its proper divisors (1808588332).

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

1401018740 is a wasteful number, since it uses less digits than its factorization.

1401018740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6368287 (or 6368285 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 26.

The square root of 1401018740 is about 37430.1848779832. The cubic root of 1401018740 is about 1118.9602222846.

Adding to 1401018740 its reverse (478101041), we get a palindrome (1879119781).

It can be divided in two parts, 140101 and 8740, that added together give a palindrome (148841).

The spelling of 1401018740 in words is "one billion, four hundred one million, eighteen thousand, seven hundred forty".