1400146740 has 36 divisors (see below), whose sum is σ = 4247112324. Its totient is φ = 373372416.

The previous prime is 1400146721. The next prime is 1400146799. The reversal of 1400146740 is 476410041.

It can be written as a sum of positive squares in 2 ways, for example, as 609299856 + 790846884 = 24684^2 + 28122^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3889117 + ... + 3889476.

Almost surely, 2^1400146740 is an apocalyptic number.

1400146740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1400146740 is an abundant number, since it is smaller than the sum of its proper divisors (2846965584).

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

1400146740 is a wasteful number, since it uses less digits than its factorization.

1400146740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7778608 (or 7778603 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 1400146740 is about 37418.5347120915. The cubic root of 1400146740 is about 1118.7280255767.

Adding to 1400146740 its reverse (476410041), we get a palindrome (1876556781).

The spelling of 1400146740 in words is "one billion, four hundred million, one hundred forty-six thousand, seven hundred forty".