1400014890 has 48 divisors (see below), whose sum is σ = 3649487400. Its totient is φ = 372368256.

The previous prime is 1400014879. The next prime is 1400014921. The reversal of 1400014890 is 984100041.

It can be written as a sum of positive squares in 4 ways, for example, as 690165441 + 709849449 = 26271^2 + 26643^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15016 + ... + 55004.

Almost surely, 2^1400014890 is an apocalyptic number.

1400014890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1400014890 is an abundant number, since it is smaller than the sum of its proper divisors (2249472510).

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

1400014890 is a wasteful number, since it uses less digits than its factorization.

1400014890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40391 (or 40388 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 1400014890 is about 37416.7728432050. The cubic root of 1400014890 is about 1118.6929080860.

The spelling of 1400014890 in words is "one billion, four hundred million, fourteen thousand, eight hundred ninety".