1400087481542 has 16 divisors (see below), whose sum is σ = 2237298960960. Its totient is φ = 655208978472.

The previous prime is 1400087481539. The next prime is 1400087481547. The reversal of 1400087481542 is 2451847800041.

It is a junction number, because it is equal to n+sod(n) for n = 1400087481493 and 1400087481502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400087481547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221951108 + ... + 221957415.

It is an arithmetic number, because the mean of its divisors is an integer number (139831185060).

Almost surely, 2^{1400087481542} is an apocalyptic number.

1400087481542 is a deficient number, since it is larger than the sum of its proper divisors (837211479418).

1400087481542 is a wasteful number, since it uses less digits than its factorization.

1400087481542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443908627.

The product of its (nonzero) digits is 286720, while the sum is 44.

The spelling of 1400087481542 in words is "one trillion, four hundred billion, eighty-seven million, four hundred eighty-one thousand, five hundred forty-two".